/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.alibaba.jstorm.callback; import backtype.storm.daemon.Shutdownable; /** * Base Runnable/Callback function * * @author yannian */ public class RunnableCallback implements Runnable, Callback, Shutdownable { @Override public <T> Object execute(T... args) { return null; } public void preRun() { } @Override public void run() { } public void postRun() { } public Exception error() { return null; } public Object getResult() { return null; } public void shutdown() { } public String getThreadName() { return null; } }